def from_environment(name, prefix, no_builds=False, ignore_channels=False, from_history=False): """ Get environment object from prefix Args: name: The name of environment prefix: The path of prefix no_builds: Whether has build requirement ignore_channels: whether ignore_channels from_history: Whether environment file should be based on explicit specs in history Returns: Environment object """ # requested_specs_map = History(prefix).get_requested_specs_map() if from_history: history = History(prefix).get_requested_specs_map() deps = [str(package) for package in history.values()] return Environment(name=name, dependencies=deps, channels=list(context.channels), prefix=prefix) pd = PrefixData(prefix, pip_interop_enabled=True) precs = tuple(PrefixGraph(pd.iter_records()).graph) grouped_precs = groupby(lambda x: x.package_type, precs) conda_precs = sorted(concatv( grouped_precs.get(None, ()), grouped_precs.get(PackageType.NOARCH_GENERIC, ()), grouped_precs.get(PackageType.NOARCH_PYTHON, ()), ), key=lambda x: x.name) pip_precs = sorted(concatv( grouped_precs.get(PackageType.VIRTUAL_PYTHON_WHEEL, ()), grouped_precs.get(PackageType.VIRTUAL_PYTHON_EGG_MANAGEABLE, ()), grouped_precs.get(PackageType.VIRTUAL_PYTHON_EGG_UNMANAGEABLE, ()), # grouped_precs.get(PackageType.SHADOW_PYTHON_EGG_LINK, ()), ), key=lambda x: x.name) if no_builds: dependencies = ['='.join((a.name, a.version)) for a in conda_precs] else: dependencies = ['='.join((a.name, a.version, a.build)) for a in conda_precs] if pip_precs: dependencies.append({'pip': ["%s==%s" % (a.name, a.version) for a in pip_precs]}) channels = list(context.channels) if not ignore_channels: for prec in conda_precs: canonical_name = prec.channel.canonical_name if canonical_name not in channels: channels.insert(0, canonical_name) return Environment(name=name, dependencies=dependencies, channels=channels, prefix=prefix)